Will vaping bans do more harm than good? Some public health experts say yes. How much nicotine is in a cigarette compared to a vape? Vaping The Guardian Parents using e cigs expose kids to dangerous secondhand vapor Futurity Vaping may be causing irreversible harm to children's health, doctors say Vaping The Guardian Is Vaping Safer than Smoking? Vaping may be less harmful to blood vessels than smoking cigarettes BHF